Stability of oligochaeta to chemical pollution

Oligochaetes, which are rather hardy to organic pollution, are sensitive to the sulfur-bearing substances, hexochlorans and ions of heavy metals. The degree of fenols' toxicity for a number of various oligochaete types and level of their resistance to influence of these toxicides were experimentally determined. The strong influence of sulfur-bearing heterocyclic compounds of aminosin type on nervous and circulatory system of oligochaetes is demonstrated for the first time.